/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: 62536
 * Date: 2023-12-03
 * Time: 14:24
 */
public interface IList {
    void addFirst(int data);
    void addLast(int data);
    void addIndex(int index,int data);
    boolean contains(int key);
    void remove(int key);
    void removeAllKey(int key);
    int size();
    void clear();
    void display();
}
